Stinger SGP32 200 Amp Battery Isolator Relay vs NVX BIR500 500A Battery Relay Isolator and Relay
Overall winner: NVX BIR500 500A Battery Relay Isolator and Relay
Key Differences
Choose the Stinger SGP32 (A) if you want a more affordable, 200A isolator with higher review count and slightly higher average rating; choose the NVX BIR500 (B) if you need much higher continuous capacity (500A) and lower on-state draw for heavy-duty or multi-amp setups despite some reported durability and voltage-range concerns
Stinger SGP32 200 Amp Battery Isolator Relay
Battery isolator and relay for 12V systems. Prevents primary battery discharge and extends battery life. Users note easy installation and quality, with mixed durability feedback
Pros
- 200 amp capacity
- prevents primary battery discharge
- easy installation
- quality feel
Cons
- mixed durability feedback
- mixed instructions clarity
NVX BIR500 500A Battery Relay Isolator and Relay
NVX BIR500 is a 500 A continuous/700 A surge battery relay isolator for automotive and marine use, suited for audio systems. Customers note easy installation and solid build, with some concerns about durability and voltage drop
Pros
- high amp capacity (500 A continuous)
- low draw when on
- easy installation
- solid build quality
Cons
- durability concerns with some reports of breakage
- mixed feedback on voltage range and voltage drop
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | STINGER |
| Durability | Tie |
| Versatility | NVX |
| User Reviews | STINGER |